# `GSCompositingOperation.GSCompositingOperationSourceIn`

*Type Property*

`COMPOSITE_SRC_IN`          `kCGBlendModeSourceIn`         `NSCompositingOperationSourceIn`

## Declaration

```swift
static let sourceIn: GSCompositingOperation
```

```objc
extern GSCompositingOperation const GSCompositingOperationSourceIn;
```

```python
GSCompositingOperationSourceIn: GSCompositingOperation
```